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Extraction device, particularly for mining, and method for controlling the extraction device

a technology of extraction device and extraction device, which is applied in the direction of cutting machine, earthwork drilling and mining, propulsion, etc., can solve the problems of short service life of magnetic measuring system, large amount of wear, and inability to develop the technical implementation of system, etc., to achieve high system reliability, reliable detection of drive chain condition, and long service life

Active Publication Date: 2013-10-08
CATERPILLER GLOBAL MINING EURO GMBH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The solution provides a reliable and long-lasting system for detecting chain conditions, preventing erroneous measurements and enabling the detection of hanging chains, with negligible mechanical wear and high system reliability, suitable for mass production.

Problems solved by technology

Since the magnetic transducer is arranged, with the measuring device, in the floor panel of the outgoing run, a large amount of wear is produced which only allows a short service life for a magnetic measuring system of this kind.
It has not therefore been possible to develop the technical implementation of the system for detecting hanging chain and other chain conditions which is known from DE 34 06 519 A1 for mass production.

Method used

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  • Extraction device, particularly for mining, and method for controlling the extraction device
  • Extraction device, particularly for mining, and method for controlling the extraction device
  • Extraction device, particularly for mining, and method for controlling the extraction device

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Embodiment Construction

[0025]Referring now to the drawings wherein the showings are for the purpose of illustrating preferred and alternative embodiments of the invention only and not for the purpose of limiting same, FIG. 1 shows, in a schematic illustration of the system, a conveyor device which is designated overall by reference numeral 10, for subterranean mining. The conveyor device 10 includes, in a manner known per se, a first drive station 1 having a schematically illustrated drive motor 2 and a sprocket 3 and, at the other end of the conveyor device 10, a second drive station 4 once again having a sprocket 5 and an associated drive motor 6. The drive motors 2 and 6 may in principle take any form suitable for the intended purpose and be constructed as synchronous motors, frequency converter motors or similar, and include gears, regulating means, overload clutches and similar. Between the two sprockets 3, 5 there circulates, in the direction of conveying indicated by the arrow F, an endless scraper...

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PUM

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Abstract

An extraction device, particularly for mining, having two drive stations and a drive chain which extends between the sprockets thereof. So that hanging chain or chain wear to a conveyor chain, in the case of a conveyor device, or to a plow chain, in the case of a plow device, can be detected, magnetic sensor units for detecting at least one chain condition of the drive chain are provided, wherein each sensor unit includes a transmitter, which is formed by a static or dynamic magnetic field generator, and a detector field, which is provided with a plurality of magnetic field detectors, as a detector, the detector and the transmitter being arranged to the side of a passage for the run of the drive chain that is to be scanned. The invention also relates to a method for controlling an extraction device for preventing hanging chain.

Description

[0001]This application claims priority to and the benefit of the filing date of International Application No. PCT / EP2008 / 007327, filed Sep. 8, 2008, which application claims priority to and the benefit of the filing date of German Application No. 10 2007 043 043.6, filed Sep. 11, 2007, both of which are hereby incorporated by reference into the specification of this application.[0002]The invention relates to an extraction device, particularly for mining, having a first drive station and a second drive station which is preferably capable of being tensioned by a tensioning means, having sprockets which are mounted in the drive stations, having a drive chain which includes chain links, may be moved and / or deflected by means of the motor-drivable sprockets and extends between the sprockets in the form of an upper run and a lower run, and at least one sensor unit for detecting at least one chain condition of the drive chain in the upper run or the lower run. The invention also relates to...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): B65G23/44
CPCB65G23/44E21C29/14E21F13/066
Inventor MERTEN, GERHARDSCHURER, KARL-HEINZWIRTZ, JORGBAUMLER, MANFREDBOKER, UWE
Owner CATERPILLER GLOBAL MINING EURO GMBH
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